Strict mode Failing
Expected no error, got SyntaxError: async generators are unsupported
non-Strict mode Failing
Expected no error, got SyntaxError: async generators are unsupported
Features:
- async-iteration
Expected no error, got SyntaxError: async generators are unsupported
Expected no error, got SyntaxError: async generators are unsupported
// Copyright 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
author: Caitlin Potter <caitp@igalia.com>
esid: sec-asyncgenerator-prototype-throw
description: >
Thrown generator suspended in a yield position resumes execution within
the associated finally block and throws an error and suspendeds execution
again
info: |
AsyncGenerator.prototype.throw ( exception )
1. Let generator be the this value.
2. Let completion be Completion{[[Type]]: throw, [[Value]]: exception, [[Target]]: empty}.
3. Return ! AsyncGeneratorEnqueue(generator, completion).
AsyncGeneratorEnqueue ( generator, completion )
...
8. If state is not "executing", then
a. Perform ! AsyncGeneratorResumeNext(generator).
...
AsyncGeneratorResumeNext:
If completion.[[Type]] is throw, and generator.[[AsyncGeneratorState]] is
"suspendedYield", and generator is resumed within a try-block with an
associated finally block, resume execution within finally.
flags: [async]
features: [async-iteration]
---*/
var error = new Error('boop');
var g = async function*() {
try {
yield 1;
throw new Test262Error('Generator must be resumed in finally block.');
} finally {
throw error;
throw new Test262Error('Generator must not be resumed.');
}
};
var it = g();
it.next().then(function(ret) {
assert.sameValue(ret.value, 1, 'Initial yield');
assert.sameValue(ret.done, false, 'Initial yield');
it.throw(new Error('superceded')).then($DONE, function(err) {
assert.sameValue(err, error, 'AsyncGeneratorReject(generator, resultValue)');
it.next().then(function(ret) {
assert.sameValue(ret.value, undefined, 'Generator is closed');
assert.sameValue(ret.done, true, 'Generator is closed');
}).then($DONE, $DONE);
}).catch($DONE);
}).catch($DONE);